Question: When was Panasonic's total assets equal to 6.40332e+12?
Paraphrase: On what date did 6.40332e+12 equal the total assets of Panasonic?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q53247 p:P2403 ?s . ?s ps:P2403 ?x filter(contains(?x , '6.40332e+12')) . ?s pq:P585 ?value}